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1. Grey wolves have coats ranging from grey to black, with black being dominant over grey. This genetic trait is referred to as gene "A". It was observed that among all the animals in the food web, the highest concentration of pesticides was found in wolves, where their toxic effects could lead to a decrease in the population. Pesticides are usually used to control insect populations and are directly applied to the food source of arthropods.

a) Why is the highest concentration of these pesticides found in wolves rather than in their intended target?

Answer :

The highest concentration of pesticides is found in wolves rather than in their intended target due to a process called Biomagnification. Biomagnification is the accumulation of pollutants in higher concentrations as they move up the food chain.

In this case, the pesticides are initially applied to control insect populations, which are the food source for arthropods. Arthropods, in turn, are preyed upon by small mammals such as mice or rats. The small mammals may consume a certain amount of the pesticide along with their food.

When the wolves, which are higher up in the food chain, prey on small mammals, they accumulate the pesticides present in their prey's body. Since wolves are predators at the top of the food chain, they consume a large number of small mammals, resulting in a significant concentration of pesticides in their bodies.

Furthermore, as the pesticides move up the food chain, they become more concentrated because they are not easily metabolized or eliminated from the body. This accumulation of pesticides in the tissues of the wolves leads to the highest concentration being found in them, rather than in their intended target, the insects.

It's important to note that biomagnification can have detrimental effects on the predators at the top of the food chain, such as the wolves in this case. The toxic effects of these pesticides can lead to a decrease in the wolf population.

Overall, the highest concentration of pesticides in wolves, rather than in their intended target, is a result of the process of biomagnification, where pollutants accumulate in higher concentrations as they move up the food chain.

You can learn more about Biomagnification at: brainly.com/question/33441811

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